WO2020021613A1

WO2020021613A1 - Elevator for wheelchair users

Info

Publication number: WO2020021613A1
Application number: PCT/JP2018/027599
Authority: WO
Inventors: 伊藤　公一
Original assignee: 三菱電機株式会社
Priority date: 2018-07-24
Filing date: 2018-07-24
Publication date: 2020-01-30

Abstract

An elevator for wheelchair users according to the present invention enables the direction of a wheelchair user to be switched without the installation of a dedicated motor for rotating a turntable. An elevator for wheelchair users according to the present invention is provided with a motor that performs an opening operation for opening a door and a closing operation for closing the door, a turntable rotatably provided on the floor surface of the car, and a power transmission unit in which the motor and the turntable are connected, and which rotates the turntable by transmitting the power of the motor, wherein the turntable can be rotated by the power of the motor for opening and closing the door.

Description

Elevator for wheelchair users

The present invention relates to an elevator for a wheelchair user provided with a turntable for turning the direction of a wheelchair user.

When a wheelchair user uses an elevator, when entering from the entrance of the elevator, the wheelchair user faces the opposite side of the entrance. After entering, the wheelchair user must operate the wheelchair to change the direction on his own if he wants to turn to the entrance side.
In order to facilitate such a direction change of a wheelchair user, a wheelchair user elevator in which a turntable is installed on the floor of the elevator to enable the direction change of the wheelchair user is known (for example, Patent Document 1 below). The elevator for a wheelchair user disclosed in Patent Document 1 is configured such that when a turn button of a turntable installed in a car is operated, a dedicated motor for turning the turntable operates and the turntable turns. Have been.
The wheelchair user enters the car, moves on the turntable, and operates the turning button, so that the wheelchair user can change the direction so as to face the doorway side.

JP 2000-191256 A

However, the technique disclosed in Patent Document 1 has a problem that a dedicated motor must be provided to rotate the turntable.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problems, and an elevator for a wheelchair user who can change the direction of a wheelchair user without installing a dedicated motor for rotating a turntable. The purpose is to provide.

An elevator for a wheelchair user according to the present invention includes a car having a floor surface and an entrance, a door provided at an entrance and an opening operation of opening a door at a floor and a destination floor provided in a car and registered for a call. And a motor performing a closing operation for closing, a turntable rotatably provided on the floor surface, and a power transmission unit that connects the motor and the turntable, transmits power of the motor, and rotates the turntable, and It is a thing.

According to the present invention, the direction of the wheelchair user can be changed without installing a dedicated motor for rotating the turntable.

It is a figure which shows the structure of the entrance / exit of the elevator for wheelchair users concerning Embodiment 1 of this invention. It is the figure which looked at the car and hoistway of the elevator for wheelchair users concerning Embodiment 1 of this invention from the side. It is a figure which shows the structure of the motor and the door in the elevator for wheelchair users concerning Embodiment 1 of this invention. It is the figure which looked at the car of the elevator for wheelchair users concerning Embodiment 1 of this invention from below. It is a figure which shows the hardware structure of the 1st control apparatus and 2nd control apparatus of the elevator for wheelchair users concerning Embodiment 1 of this invention. It is a flowchart which shows operation | movement of the elevator for wheelchair users concerning Embodiment 1 of this invention. It is a flowchart which shows operation | movement of the elevator for wheelchair users concerning Embodiment 2 of this invention. It is a flowchart which shows operation | movement of the elevator for wheelchair users concerning Embodiment 3 of this invention. It is a figure which shows the structure of the motor and the door in the elevator for wheelchair users concerning Embodiment 4 of this invention. It is the figure which looked at the car of the elevator for wheelchair users concerning Embodiment 4 of this invention from below. It is a flowchart which shows operation | movement of the elevator for wheelchair users concerning Embodiment 4 of this invention.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. The same reference numerals in the drawings represent the same or corresponding parts.

Embodiment 1
The elevator 100 for the wheelchair user according to the first embodiment of the present invention uses the power of the motor 25 for opening and closing the door 26 without using a dedicated motor as a power source of the turntable 28 provided in the car 22. To rotate the turntable 28 (FIG. 2).
In order to transmit the power of the motor 25 for opening and closing the door 26 to the turntable 28, the elevator 100 for a wheelchair user includes a power transmission unit connecting the motor 25 and the turntable 28. The power transmission unit is provided on a side surface of the door 26 on the side of the car 22, a rack 27 that moves with the door 26, a gear 30 that meshes with the rack 27 and rotates, and is connected to the gear 30 and rotates with the gear 30 to rotate the turntable 28. A shaft 29, and an electromagnet 31 for moving the gear 30 to a position where the gear 30 meshes with the rack 27.
When the gear 30 and the rack 27 engage with each other by the electromagnet 31, the power for opening and closing the door 26 is transmitted to the turntable, and the turntable 28 rotates without a dedicated motor.

The overall configuration of the wheelchair user elevator 100 according to the first embodiment of the present invention will be described with reference to FIGS. 1 and 2.
FIG. 1 shows a configuration of an entrance and exit of a wheelchair user elevator 100 on each floor. The entrance of the elevator 100 for wheelchair users is provided on the outer wall 10 having an opening for an occupant including a wheelchair user to enter and exit the elevator, a pair of outer doors 11a and 11b closing the opening, and the outer wall 10. And a call button 13 for a wheelchair user.
The call button 12 is a button operated by an occupant other than a wheelchair user, and an up button operated when the destination floor is the upper floor, and a down button operated when the destination floor is the lower floor. Button. The call button 12 detects that a car call operation has been performed by an occupant other than the wheelchair user.
The call button 13 for a wheelchair user is a button operated by a wheelchair user, and includes an up button and a down button, like the call button 12. The wheelchair user call button 13 detects that a car call operation has been performed by the wheelchair user.

FIG. 2 shows the configuration of the car 22 and the like located inside the entrance of the elevator 100 for wheelchair users. FIG. 2 is a diagram viewed from the side of the car 22 or the like, that is, the direction viewed from the entrance and the entrance and the direction perpendicular to the moving direction of the car 22.
Inside the entrance, a hoistway surrounded by an outer wall 10 (FIG. 1) and a hoistway wall 21 is formed. In the hoistway, a car 22 for carrying an occupant including a wheelchair user is provided. It is provided movably along the hoistway. The car 22 has a ceiling and a floor surface, and side surfaces connecting the ceiling and the floor surface. Of the side surfaces, an entrance is provided on the entrance / exit side of the elevator 100 for a wheelchair user. The car 22 moves up and down along the hoistway with a wheelchair user or an occupant other than the wheelchair user placed in a space surrounded by a ceiling, a floor surface, and side surfaces.
In FIG. 2, for convenience of explanation, the portion below the outer surface 22 a on the left side as viewed from the entrance side of the car 22 is omitted, and the inner surface 22 b on the right side as viewed from the entrance side of the car 22 is shown. ing.

A first control device 23 which is a control panel for controlling the movement of the car 22 is provided at a position above the hoistway wall 21 where the car 22 does not contact the car 22. The first control device 23 is connected to the call button 12 on each floor and the call button 13 for a wheelchair user via a signal line (not shown).
When the call button 12 or the wheelchair user's call button 13 detects an operation, the first controller 23 detects the operated floor and the operated button is the call button 12 or the wheelchair user's call button 13. Call and register. Then, the hoist (not shown) is driven to move the car 22 in order to move the car 22 to the floor registered and called. When the occupant including the wheelchair user designates a destination floor in the car 22, the hoist is driven to move the car 22 to the destination floor.
In addition, the first control device 23 determines the floor or the destination floor where the call is registered based on the rotation speed of the hoist or the output of a limit switch (not shown) that detects the arrival of the car 22 installed at the entrance of each floor. It is determined that the car 22 has arrived.

A second control device 24, which is an on-car control device for opening and closing the door 26 of the car 22, is provided outside the ceiling of the car 22 and is connected to the first control device 23 via a signal line (not shown). Have been. When the first controller 23 determines that the car 22 has arrived at the floor or the destination floor where the call is registered, the second controller 24 drives the motor 25 to open the door 26. Further, when a predetermined time has elapsed from the opening operation of the door 26 or when an operation of closing the door 26 with the operation button 32 in the car described later is performed, the motor 25 is driven to close the door 26.
When the first control device 23 receives the call registration of the wheelchair user call button 13, the second control device 24 transmits the power of the motor 25 to the turntable 28 in order to rotate the turntable 28. The power transmission unit (more specifically, the electromagnet 31) is controlled.

The motor 25 is provided outside the ceiling of the car 22. When the second control device 24 energizes the motor 25, the motor 25 is driven to perform the opening operation and the closing operation of the door 26.
The door 26 is constituted by a pair of doors 26 a and 26 b provided at a position that closes the doorway of the car 22. The upper end of the door 26 is connected to the upper part of the side wall of the car 22 so as to be slidable in parallel with the side wall having the entrance of the car 22.
The motor 25 and the door 26 are connected via a mechanism for transmitting the power of the motor 25 (described later with reference to FIG. 3), and the door 26 opens and closes in accordance with the driving of the motor 25. I do.

The rack 27 is fixed to a side surface of the door 26 a on the side of the car 22, and is arranged below the car 22. The rack 27 has an L-shape, extends from the side surface of the door 26a toward the hoistway wall 21 facing the entrance / exit side, and extends from the tip of the portion in parallel with the moving direction of the door 26, A portion having a plurality of teeth on the side opposite to the door 26.
The rack 27 moves in the same direction as the moving direction of the door 26 in conjunction with the opening and closing operations of the door 26.

The turntable 28 is a disk-shaped member rotatably installed on the floor of the car 22. When the first control device 23 receives the call registration by the wheelchair user, the turntable 28 performs a rotating operation to change the direction of the wheelchair user.
A shaft 29 is fixed to the center of the turntable 28, and the shaft 29 penetrates through the floor of the car 22 and extends below a position facing the toothed portion of the rack 27. The shaft 29 transmits power to the turntable 28 and rotates the turntable 28.

The shaft 29 is provided with large-diameter portions 29a and 29c, which are large-diameter portions, and a small-diameter portion 29b, which is a small-diameter portion located between the large-diameter portions 29a and 29c. A gear 30 having a through hole smaller in diameter than the large diameter portions 29a and 29c is slidably installed. That is, the gear 30 can move between the large diameter portions 29a and 29c.
The distance L1 from the upper end of the small diameter portion 29b of the shaft 29 (turntable 28 side) to the floor of the car 22 is equal to the distance from the upper end of the rack 27 (turntable 28 side) to the floor of the car 22. The distance L2 from the large diameter portion 29a to the large diameter portion 29c of the shaft 29 (that is, the length of the small diameter portion 29b) is equal to the sum of the thickness of the rack 27 and the thickness of the gear 30 in the direction coinciding with the axial direction of the shaft 29. Matches. By configuring the shaft 29 in this manner, the gear 30 slides between a position where the gear 30 faces the rack 27 and meshes with each other, and a position where the gear 30 does not face the rack 27 and meshes with each other.
Further, the small diameter portion 29b of the shaft 29 is provided with a convex portion along the axial direction, and the through hole of the gear 30 is provided with a concave portion corresponding to the convex portion. The gear 30 transmits the power to the shaft 29 and rotates the shaft 29 and the turntable 28 by the engagement between the convex portion and the concave portion.

The electromagnet 31 is installed on the turntable 28 side from the small diameter portion 29 b of the shaft 29. When the first control device 23 accepts the call registration of the wheelchair user call button 13, the electromagnet 31 is energized by the second control device 24 to generate a magnetic force, and the gear 30 faces the rack 27 and the position where the teeth mesh with each other. Move to As a result, power for the motor 25 to open or close the door 26 is transmitted to the gear 30 via the rack 27, and the turntable 28 rotates.
In other words, when the electromagnet 31 generates a magnetic force and moves the gear 30, the power transmission unit enters a connection state in which the motor 25 and the turntable 28 are connected. When the magnetic force of the electromagnet 31 disappears, the gear 30 moves to the end of the shaft 29 on the side opposite to the turntable 28, and the power transmission unit disconnects the connection between the motor 25 and the turntable 28. Becomes By controlling the energization of the electromagnet 31, the power transmission unit can be switched between a connected state and a disconnected state.

An operation button 32 is provided on a side wall inside the car 22. The operation buttons 32 include a button for designating a destination floor, a button for opening the door 26, and a button for closing the door 26.
The operation button 32 detects an operation of instructing a destination floor of an occupant including a wheelchair user and an operation of opening and closing the door 26, and outputs the operation to the first control device 23 and the second control device 24.

A rotary encoder 33 is provided outside the floor of the car 22, and the rotary encoder 33 outputs information indicating a rotation angle of the shaft 29 to the second control device 24.

The rack 27, the shaft 29, the gear 30, and the electromagnet 31 according to the first embodiment correspond to a power transmission unit. The first control device 23 and the second control device 24 of the first embodiment correspond to a control unit. The call button 13 for the wheelchair user according to the first embodiment corresponds to a detection unit.

Next, the principle of transmitting the power of the motor 25 to the turntable 28 and the details of the configuration related to the power transmission will be described with reference to FIGS.
FIG. 3 is a diagram showing the elevator 100 for a wheelchair user as viewed from A in FIG. 2, and the flow of power transmission of the motor 25 when the motor 25 is driven by the second control device 24 and the door 26 is closed. Is shown.
The motor 25 is disposed on the one door 26b side of the ceiling of the car 22 and has a shaft that rotates to transmit power. A shaft 40 having a rotation axis parallel to the shaft of the motor 25 is rotatably installed on the ceiling of the car 22. Pulleys 45 and 46 are fixed to the tip of each shaft, and an annular belt 41 is hung on the pulleys 45 and 46.
Bar-shaped members 42a and 42b are fixed to the upper portions of the doors 26a and 26b, respectively. The rod-shaped member 42a grips the belt 41 located on the door 26 side, and the rod-shaped member 42b grips the belt 41 located on the side opposite to the door 26.
Here, when the motor 25 is driven and the shaft of the motor 25 rotates counterclockwise, the rod-shaped member 42 a is pulled by the belt 41 and moves to the motor 25 side. Accordingly, the door 26a moves to the motor 25 side. Further, the rod-shaped member 42b is pulled by the belt 41 and moves to the side opposite to the motor 25. Accordingly, the door 26b moves to the side opposite to the motor 25.
Thus, the motor 25 performs the closing operation of closing the door 26. When performing an opening operation to open the door 26, the motor 25 rotates the shaft clockwise.

Next, the principle that the turntable 28 rotates with the closing operation of closing the door 26 will be described with reference to FIG.
FIG. 4 is a diagram illustrating the elevator 100 for the wheelchair user viewed from B in FIG. 2, and illustrates a flow of power transmission of the motor 25 when the motor 25 is driven and the door 26 is closed.
As described with reference to FIG. 3, when the motor 25 is driven, the door 26a and the door 26b move in directions approaching each other. The rack 27 is fixed to the door 26a, and moves in the same direction as the door 26a.
At this time, when the electromagnet 31 generates a magnetic force and moves to a position where the gear 30 and the rack 27 mesh with each other, the gear 30 rotates clockwise due to the movement of the rack 27. The rotation of the gear 30 is transmitted to the turntable 28 via the shaft 29, and the turntable 28 also rotates clockwise.

Here, the length of the toothed portion of the rack 27 (portion parallel to the moving direction of the door 26 in the L-shape) can be maintained in a state in which it is engaged with the gear 30 even when the door is completely closed. Thus, it is longer than the moving length of the door 26a.
The circumference of the gear 30 is twice as long as the door 26a moves. By doubling the circumferential length, when the rack 27 moves, the gear 30 makes a half turn. Therefore, the turntable 28 makes a half turn with the opening operation of the door 26, and the end of the turntable located on the opposite side to the entrance faces the entrance.
In FIG. 4, the rotation of the turntable 28 during the closing operation of the door 26 has been described. However, in the case of the opening operation of the door 26, the turntable 28 and the gear 30 rotate counterclockwise.

Next, a hardware configuration of the first control device 23 and the second control device 24 of the wheelchair user elevator 100 according to the first embodiment will be described with reference to FIG.
The first control device 23 and the second control device 24 are configured by processors 23a and 24a, memories 23b and 24b, and interfaces 23c and 24c, respectively.
In the memory 23b of the first controller 23, a program for accepting call registration when the call button 12 and the wheelchair user call button 13 of each floor are operated, a program for operating the hoist, and the car 22 have arrived at each floor. The processor 23a of the first control device 23 reads out these programs from the memory 23b and executes them. Further, when the call button 12 and the wheelchair user's call button 13 are operated, reception of a signal transmitted from each call button and transmission of a command to open the door 26 are performed by the interface 23c.
The memory 24b of the second control device 24 stores programs such as a program for energizing the motor 25 for opening and closing the door 26 and a program for energizing the electromagnet 31 for rotating the turntable 28. The processor 24a of the second control device 24 reads these programs from the memory 24b and executes them. Further, transmission of a signal for operating a power switch provided on the motor 25 and the electromagnet 31 in order to energize the motor 25 and the electromagnet 31 is performed by the interface 24c. Further, a signal transmitted when the operation button 32 detects an operation and a signal output from the rotary encoder 33 are received by the interface 24c.

Next, an operation performed when the elevator 100 for a wheelchair user of the first embodiment rotates the turntable 28 will be described with reference to a flowchart of FIG.
The operation based on the flowchart of FIG. 6 is started when the elevator 100 for the wheelchair user arrives at the floor where the call is registered and the opening operation of the door 26 is completed.

The second control device 24 determines whether the call registration is performed by a wheelchair user (step S101).
When the operation of the wheelchair user call button 13 is detected, a signal indicating the detection is generated and transmitted to the first control device 23. When receiving the signal, the first control device 23 calls and registers information indicating that the call button 13 for the wheelchair user has been operated. Then, the first control device 23 generates a signal indicating that the call registration is performed by the wheelchair user, and transmits the signal to the second control device 24. When receiving the signal, the second control device 24 determines that the call registration is performed by the wheelchair user.

If the second control device 24 determines that the call registration is not performed by the wheelchair user (NO in step S101), the wheelchair user is not included in the occupant, and it is not necessary to rotate the turntable 28, and thus the second control device 24 has a predetermined time. After the elapse, a closing operation of closing the door 26 is performed (Step S105). Even if the predetermined time has not elapsed, when the operation button 32 detects an operation for closing the door 26 and transmits a signal indicating that the operation has been performed to the second control device 24, The second control device 24 performs a closing operation to close the door 26.

On the other hand, when it is determined that the call registration is performed by the wheelchair user (YES in step S101), the second control device 24 meshes the gear 30 with the rack 27 (step S102).
Specifically, the second control device 24 starts energization of the electromagnet 31 and generates a magnetic force for pulling the gear 30 toward the electromagnet 31. The gear 30 is attracted by the magnetic force, moves from the end of the shaft 29 opposite to the turntable 28 to the turntable 28 side, and moves to a position where it meshes with the rack 27.

Next, the second control device 24 performs a closing operation of closing the door 26 after a lapse of a predetermined time from the opening of the door 26. Since the gear 30 and the rack 27 are engaged, the turntable 28 also rotates in conjunction with the door 26 (step S103).
Further, even when the predetermined time has not elapsed, when the operation button 32 detects an operation for closing the door 26 and transmits a signal indicating that the operation has been performed to the second control device 24, The second control device 24 performs a closing operation to close the door 26.

Thereafter, the second control device 24 releases the engagement between the gear 30 and the rack 27 (step S104).
Specifically, after completing the closing operation of the door 26, the second control device 24 stops energizing the electromagnet 31. Accordingly, the magnetic force received by the gear 30 disappears, and the gear 30 moves to an end of the shaft 29 opposite to the turntable 28 at a position where the gear 30 does not mesh with the rack 27.

After the gear 30 and the rack 27 are disengaged from each other (step S104) or after the door 26 is closed (step S105), the wheelchair user elevator 100 rotates the turntable 28. The operation ends, and the wheelchair user elevator 100 moves to the destination floor.

The elevator 100 for a wheelchair user according to Embodiment 1 of the present invention is configured as described above, and has the following effects.
The elevator 100 for a wheelchair user includes a rack 27, which is a power transmission unit, a shaft 29, a gear 30, and an electromagnet 31, and the second controller 24 energizes the electromagnet 31 to engage the gear 30 with the rack 27. To the position, and the power of the motor 25 can be transmitted to the turntable 28.
Thus, it is possible to change the direction of the wheelchair user without installing a dedicated motor for rotating the turntable.

The elevator 100 for a wheelchair user includes a second control device 24. The second control device 24 operates the motor 25, and the end of the turntable located on the opposite side of the entrance on the floor where the call is registered is located. After turning to the entrance side on the destination floor, the power transmission unit is configured to be cut off.
Thus, after the wheelchair user changes direction on the turntable 28, it is possible to prevent the turntable 28 from rotating again to change the direction of the wheelchair user. You can leave the doorway without switching.

Here, a modified example of the embodiment of the present invention will be described.
In Embodiment 1, the example in which the turntable 28 is rotated when the door 26 closes on the floor where the call is registered has been described. However, the occupant including the wheelchair user moves to the destination floor, and the door 26 is moved. When performing the opening operation, the turntable 28 may be rotated.
Specifically, from after the closing operation of the door 26 on the floor where the call has been registered to before the opening operation of the door 26 on the destination floor, the second control device 24 energizes the electromagnet 31 and causes the gear 30 And the rack 27 are engaged. By opening the door 26 on the destination floor in this state, the turntable 28 can be rotated when the door 26 is opened.
In this case, the operation of the wheelchair user elevator 100 is partially different from the flowchart of FIG. The different parts are as follows.
First, the operation in the flowchart of FIG. 6 is started from when the door 26 closes on the floor where the call is registered until the door 26 opens on the destination floor. In step S103, the door 26 is opened instead of closing, and the turntable 28 is rotated. In the operation in step S105, the door 26 is opened, not closed.

Further, in the first embodiment, an example is described in which the car 22 has a single entrance, but there may be a plurality of entrances. When the entrance of the call registered floor is different from the entrance of the destination floor, the circle of the gear 30 is used to turn the end of the turntable located on the opposite side to the entrance of the call registered floor toward the entrance on the destination floor. The length of the circumference may be appropriately adjusted.

Embodiment 2
Next, a second embodiment of the present invention will be described. A description of the same parts as those in the configuration and operation described in the first embodiment will be omitted, and parts different from the first embodiment will be described below. The elevator 100 for a wheelchair user according to the second embodiment can be used in combination with the first embodiment or a modification thereof.
In the first embodiment, the moving speed of the door 26 when performing the opening operation and the closing operation of the door 26 is fixed.
In the second embodiment, two different speeds are used as the moving speed of the door 26.

The second control device 24 of the second embodiment controls the power supplied to the motor 25 to change the rotation speed of the motor 25 in two stages.
More specifically, the second control device 24 drives the motor 25 at a lower speed among two different speeds when the following two conditions are simultaneously satisfied.
One is a case where the wheelchair user call button 13 is operated and the first control device 23 determines that the wheelchair user uses. The other is a case where the second control device 24 energizes the electromagnet 31 to connect the power transmission unit.
When these two conditions are satisfied at the same time, the second control device 24 drives the motor 25 at a low speed.
On the other hand, when these two conditions are not satisfied at the same time, the second control device 24 drives the motor 25 at a higher speed among the two different speeds.

When the wheelchair user's call button 13 is operated, the second control device 24 connects the power transmission unit, but the two conditions are not always satisfied. The second control device 24 sets the power transmission unit to the connection state in one of the closing operation of the door 26 on the floor where the call is registered and the opening operation of the door 26 on the destination floor. Not satisfied.

Next, the operation of the wheelchair user elevator 100 according to the second embodiment will be described with reference to FIG. The operation is the same as that of the first embodiment except for steps S103 and S105 of the first embodiment (FIG. 6).
In the elevator 100 for the wheelchair user according to the second embodiment, the second controller 24 drives the motor 25 at a low speed when the motor 25 is driven to close the door in step S103a of FIG.
In the wheelchair user elevator 100 according to the second embodiment, when the motor 25 is driven to close the door in step S105a of FIG. 6, the second control device 24 drives the motor 25 at a high speed. .

The elevator 100 for a wheelchair user according to Embodiment 2 of the present invention is configured as described above, and has the following effects.
The wheelchair user elevator 100 slows down the moving speed of the door 26 when there is a possibility that the wheelchair user is turning using the turntable 28.
Since the turntable 28 rotates in conjunction with the door 26, if the moving speed of the door 26 is low, the rotation speed of the turntable 28 will also be low.
Therefore, the wheelchair user can be rotated at a gentle speed, and the safety of the wheelchair user can be improved.

Embodiment 3
Next, a third embodiment of the present invention will be described. A description of the same parts as those in the configuration and operation described in the first embodiment will be omitted, and parts different from the first embodiment will be described below. The elevator 100 for a wheelchair user according to the third embodiment can be used in combination with the first embodiment, its modification, or the second embodiment.
When the power transmission unit of the wheelchair user elevator 100 is in a connected state, the door 26 is closed on the floor where the call registration is performed, and the call button 12 and the like are operated when the turntable 28 is rotating. The door 26 may be opened.
In such a case, in the third embodiment, the rotation of the turntable 28 is stopped by setting the power transmission unit to the disconnected state.

The elevator 100 for a wheelchair user according to the third embodiment includes a rotary encoder 33 on the shaft 29 as in the first embodiment (FIG. 2).
The second control device 24 receives the output from the rotary encoder 33 and calculates the rotation angle of the turntable 28.

Next, the operation of the wheelchair user elevator 100 according to the third embodiment will be described with reference to FIG.
The operation of the wheelchair user elevator 100 according to the third embodiment is the same as the operation in the flowchart of FIG. 6 except for a part.
The difference from FIG. 6 is that the operation shown in the flowchart of FIG. 8 is performed during the operation of step S103 of FIG. In addition, the elevator 100 for the wheelchair user of the third embodiment does not perform the operation of step S104 in FIG.
First, the wheelchair user elevator 100 engages the gear 30 and the rack 27, performs the closing operation of the door 26, and rotates the turntable 28 (steps S104 and S105 in FIG. 6). The second control device 24 of the wheelchair user elevator 100 determines whether the call button 12 or the wheelchair user call button 13 has been operated while the door 26 is closed (step S301).
Specifically, when an operation of the call button 12 or the call button 13 for a wheelchair user is detected, a signal is generated and transmitted to the first control device 23. Then, the first control device 23 transmits a signal for opening the door 26 to the second control device 24. The second control device 24 determines that the button has been operated when the signal has been received, and determines that the button has not been operated when the signal has not been received.

When it is determined that the call button 12 or the wheelchair user call button 13 has been operated (YES in step S301), the second control device 24 stops energizing the motor 25 and stops energizing the electromagnet 31. Then, the engagement between the gear 30 and the rack 27 is released (step S302). Then, the second control device 24 rotates the motor 25 in the reverse direction to open the door 26 (step S303).

Further, the second control device 24 outputs the rotation table 33 from the output indicating the rotation angle of the turntable 28 received from the rotary encoder 33 until the gear 30 and the rack 27 are disengaged from each other. Calculate the rotation angle. Further, the second control device 24 controls a rotation angle (an entrance / exit in the third embodiment) necessary for an end of the turntable 28 located on the opposite side of the entrance / exit on the floor where the call is registered to face the entrance / exit on the destination floor. Is 180 degrees), the calculated rotation angle is subtracted from the calculated rotation angle, and the remaining rotation angle required for the end of the turntable 28 to face the doorway is calculated (step S304).

Then, after the opening operation of the door 26 is completed, the second control device 24 energizes the electromagnet 31 again to engage the gear 30 with the rack 27 (step S305).
Thereafter, when a predetermined time has elapsed from the opening operation of the door 26 or when the operation of closing the door 26 is performed by the operation button 32 in the car, the second control device 24 25 is driven.
The second control device 24 receives the output indicating the rotation angle from the rotary encoder while the door 26 is being closed, and rotates the turntable 28 after engaging the gear 30 and the rack 27 in step S305. The angle is calculated, and when the rotation angle reaches the remaining rotation angle previously calculated (step S304), the power supply to the electromagnet 31 is stopped, and the engagement between the gear 30 and the rack 27 is released (step S306).

Thereafter, the elevator 100 for a wheelchair user ends the operation according to the flowchart in FIG. 7 and moves to the destination floor after the door 26 is completely closed.
When the second control device 24 determines in step S301 that the call button 12 or the wheelchair user call button 13 has not been operated, the second control device 24 determines whether the closing operation of the door 26 has been completed. Is determined (step S307), and when it is completed, the energization of the electromagnet 31 is stopped, and the engagement between the gear 30 and the rack 27 is released (step S308). Then, the operation according to the flowchart of FIG. 7 ends, and the door 26 is completely closed before moving to the destination floor. If not completed, the process returns to step S301 again, and it is determined whether or not a button operation has been performed while the door 26 is closed.

The elevator 100 for a wheelchair user according to Embodiment 3 of the present invention is configured as described above, and has the following effects.
When the turntable 28 is being rotated while the door 26 is being closed and the closing operation of the door 26 is interrupted, the elevator 100 for the wheelchair user stops energizing the electromagnet 31 and disconnects the power transmission unit. State.
Thereby, even if the closing operation of the door 26 is interrupted and the opening operation of the door 26 is started, the turntable 28 does not rotate in the reverse direction, and the posture of the wheelchair user can be prevented from becoming unstable.

The wheelchair user elevator 100 calculates the remaining rotation angle of the turntable 28 using the output of the rotary encoder 33. When the door 26 is closed again after the door 26 is opened, the power supply to the electromagnet 31 is controlled so that the turntable 28 rotates by the remaining rotation angle.
Thus, even if the closing operation of the door 26 is interrupted during the rotation of the turntable 28, the direction change to the doorway side of the wheelchair user is possible thereafter.

Here, a modification of the third embodiment of the present invention will be described.
The elevator 100 for a wheelchair user according to the third embodiment includes the rotary encoder 33, calculates the remaining rotation angle based on the output of the rotary encoder 33, and controls the energization of the electromagnet 31. Instead, a limit switch may be provided on the turntable 28. The limit switch is provided at the end of the turntable 28 so that output is performed when the end of the turntable located on the opposite side of the entrance on the floor where the call is registered faces the entrance on the destination floor.
When the limit switch is used, the calculation of the remaining rotation angle by the second control device 24 is unnecessary. When the rotation of the turntable 28 is restarted and the output of the limit switch is received, the power supply to the electromagnet 31 is stopped to stop the rotation of the turntable 28.

Embodiment 4
Next, a fourth embodiment of the present invention will be described. A description of the same parts as those in the configuration and operation described in the first embodiment will be omitted, and parts different from the first embodiment will be described below. The elevator 100 for a wheelchair user according to the fourth embodiment can be used in combination with the first, second, third, or modified embodiments.
In the first embodiment, the turntable 28 is rotated during the closing operation or the opening operation of the door 26. In the fourth embodiment, the turntable 28 is rotated at a timing different from the closing operation or the opening operation of the door 26. The configuration and operation of the wheelchair user elevator 100 that can be operated will be described.

In the fourth embodiment, since the turntable 28 is rotated at a timing different from the closing operation or the opening operation of the door 26, the transmission of the power from the motor 25 to the door 26 is cut off, and the power is directly transmitted from the motor 25 to the turntable 28. Let them communicate.
Therefore, wheelchair user elevator 100 has the following configuration instead of the configuration of the power transmission unit of the first embodiment.
First, unlike the first embodiment, the motor 25 of the fourth embodiment is installed outside the floor of the car 22. FIG. 9 corresponds to FIG. 3 of the first embodiment, and is a diagram illustrating a configuration of the motor 25 and the door 26. As shown in FIG. 9, a mechanism for transmitting power to the motor 25 and the door 26 is arranged outside the floor of the car 22, that is, below the car 22. Is the same as

Further, wheelchair user elevator 100 of the fourth embodiment has the following configuration instead of rack 27 of the first embodiment in order to directly transmit power to turntable 28.
FIG. 10 is a view corresponding to FIG. 4 of the first embodiment, and is a view of the car 22 as viewed from below. As shown in FIG. 10, the motor 25 has a pulley 401 for rotating the turntable 28 on a shaft thereof together with a pulley 45 for opening and closing the door 26. The pulley 401 is provided closer to the motor 25 than the pulley 45.
Further, a shaft 402 having a rotation axis parallel to the shaft of the motor 25 is rotatably provided outside the floor of the car 22, and a pulley 403 is fixed to an end of the shaft 402 on the door 26 side. . An annular belt 404 for rotating the turntable 28 is hung on the pulley 401 and the pulley 403.
Further, a bevel gear 405 is fixed to an end of the shaft 402 opposite to the door 26. The bevel gear 405 is used as the gear 30 to engage with the bevel gear 405. The configuration for transmitting the power from the gear 30 to the turntable 28 is the same as that of the first embodiment. The gear 30 moves between a position where it engages with the bevel gear 405 and a position where it does not engage with the magnetic force of the electromagnet 31.

An electromagnetic clutch 406 is provided on the shaft of the motor 25 between the pulley 45 and the pulley 401, and the power of the motor 25 is transmitted to the pulley 45 via the electromagnetic clutch 406.
The electromagnetic clutch 406 transmits the power of the motor 25 to the pulley 45 when the second control device 24 is energized, and does not transmit the power unless it is energized. In other words, when the electromagnetic clutch is energized, the motor 25 and the door 26 are connected, and when not energized, the connection between the motor 25 and the door 26 is disconnected.

Further, the elevator 100 for a wheelchair user of the fourth embodiment includes an operation button 32 (FIG. 2) in the car 22, and the operation button 32 includes a button for rotating the turntable 28.
The operation button 32 detects an operation for rotating the turntable 28. When the operation button 32 detects the operation, the second control device 24 rotates the turntable 28 at that timing.

The power transmission unit includes a pulley 401, a shaft 402, a pulley 403, a belt 404, and a bevel gear 405 instead of the rack 27, in addition to the shaft 29, the gear 30, and the electromagnet 31.

Next, the operation of the fourth embodiment will be described with reference to FIG. FIG. 11 is a flowchart illustrating an operation when an occupant including a wheelchair user enters the car 22 and an operation for rotating the turntable 28 with respect to the operation button 32 is performed.
First, the second control device 24 determines whether an operation for rotating the turntable 28 has been performed (step S401). If the operation has not been performed (NO in step S401), the determination in step S401 is repeated.
Specifically, when detecting an operation on a button for rotating the turntable 28, the operation button 32 generates a signal and transmits the signal to the second control device 24. When receiving the signal, the second control device 24 determines that the operation for rotating the turntable 28 has been performed, and when not receiving the signal, determines that the operation for rotating the turntable 28 has not been performed. I do.

If it is determined that an operation for rotating the turntable 28 has been performed (YES in step S401), the second control device 24 energizes the electromagnet 31 to move the gear 30 to a position where it engages with the bevel gear 405, The gear 30 and the bevel gear 405 are engaged (step S402).
Thereafter, the second control device 24 drives the motor 25 for a predetermined time to rotate the turntable 28 (step S403). At this time, the electromagnetic clutch 406 is not energized, and the door 26 is not opened or closed.
The predetermined time is a time required from the time when the motor 25 is driven to the time when the end of the turntable located on the opposite side to the entrance on the floor registered for the call faces the entrance on the destination floor.

After the rotation of the turntable 28, the second control device 24 stops the energization of the electromagnet 31, and releases the engagement between the gear 30 and the bevel gear 405 (step S404).
Thereafter, the second control device 24 returns to step S401 and determines again whether an operation for rotating the turntable 28 has been performed.

The elevator 100 for a wheelchair user according to Embodiment 4 of the present invention is configured as described above, and has the following effects.
In the fourth embodiment, the transmission of power from the motor 25 to the door 26 can be cut off, so that the turntable 28 can be rotated without the timing of opening and closing the door 26, and the wheelchair user can change directions. By operating the operation button 32 at the desired timing, it is possible to change the direction without opening and closing the door 26.

Here, supplementary and modified examples of the fourth embodiment of the present invention will be described.
In the fourth embodiment, since the wheelchair user can change the direction by operating the operation button 32 at the timing at which the user wants to change the direction, after the door is opened on the floor where the call is registered (that is, after the wheelchair user enters the room). ) To before the closing operation of the door on the destination floor (that is, before the wheelchair user leaves), the turntable 28 can be rotated.
In the fourth embodiment, the turntable 28 is rotated when the operation button 32 is operated. However, when the door 26 is opened and closed, regardless of the operation of the operation button 32, the turntable 28 is interlocked with the opening and closing of the door 26. The turntable 28 may be rotated, or the turntable 28 may not be rotated if the operation button 32 is not operated when the door 26 is opened and closed.

In the fourth embodiment, the motor 25 is driven for a predetermined time to rotate the turntable 28. However, the call registration is performed using the rotary encoder 33 or the limit switch described in the first and third embodiments. The drive of the motor 25 may be stopped by detecting that the end of the turntable located on the opposite side to the entrance on the floor on which the turn has been made faces the entrance on the destination floor.

Modifications of Embodiments 1 to 4 of the present invention will be described.
The elevator 100 for wheelchair users according to the first to fourth embodiments uses the electromagnet 31 to engage the gear 30 with the rack 27 (or the bevel gear 405). The provided electromagnetic clutch 406 may be provided on the shaft 29 connecting the gear 30 and the turntable 28. In this case, the gear 30 and the rack 27 (or the bevel gear 405) are always arranged at meshing positions.
Further, instead of the electromagnetic clutch, a one-way clutch that transmits the rotational force in only one direction may be provided. In this case, the turntable 28 rotates either when the door 26 is opened or closed. Therefore, the control of energization of the electromagnetic clutch by the second control device 24 becomes unnecessary.

In the elevators 100 for wheelchair users according to the first to third embodiments, the power transmission unit is configured using the rack 27. However, as in the fourth embodiment, the motor 25 is installed outside the floor of the car 22. The power may be transmitted to the gear 30 via the pulley 401, the belt 404, the pulley 403, the shaft 402, and the bevel gear 405 (FIG. 9).

In the wheelchair user elevators 100 of the first to third embodiments, when the wheelchair user call button 13 (FIG. 1) is operated, the power transmission unit is connected and the turntable 28 is rotated. Instead of the case where the wheelchair user call button 13 is operated, a limit switch is set on the turntable 28, and when it is detected that the wheelchair user gets on the turntable 28, the power transmission unit is turned on. The turntable 28 may be rotated in the connected state.

In the elevators 100 for wheelchair users according to the first to third embodiments, the power is transmitted from the motor 25 to the turntable 28 by moving the gear 30 using the electromagnet 31 to connect the power transmission unit. It is also possible to take the configuration of
The gear 30 may be fixed to the shaft 29 so that the rack 27 can move in a direction approaching or separating from the gear 30. More specifically, an urging member such as a spring is interposed between a portion extending from the door 26 of the rack 27 and a portion having teeth, so that the toothed portion of the rack 27 is pressed against the gear 30. Further, an electromagnet is installed on the rack 27 or the door 26. With this configuration, it is possible to energize the electromagnet, pull the toothed portion of the rack 27 toward the door 26 and cut the power transmission unit, and stop the energization of the electromagnet. By pressing the toothed portion of the rack 27 against the gear 30 by the urging member, the power transmission unit can be brought into a connected state.

The wheelchair user elevator according to the present invention can be applied to an elevator installed in a building or a home elevator.

10 outer wall, 11 outer door, 12 call button, 13 wheelchair user's call button, 21 hoistway wall, 22 car, 23 first control device, 24 second control device, 25 motor, 26 door, 27 rack, 28 turn Table, 29 shaft, 30 gear, 31 magnet, 32 operation button, 33 rotary encoder, 40 shaft, 41 belt, 42 rod member, 45 pulley, 46 pulley, 100 wheelchair user elevator, 401 使用 pulley, 402 shaft, 403 pulley , 404 belt, 405 bevel gear, 406 electromagnetic clutch

Claims

With a floor and an entrance,
A door provided at the entrance,
A motor that is provided on the car and performs a closing operation of opening and closing the door on the floor and the destination floor where the call is registered,
A turntable rotatably provided on the floor,
A power transmission unit that connects the motor and the turntable and transmits the power of the motor to rotate the turntable;
Elevator for wheelchair users equipped with.
The power transmission unit is configured to be switchable between a connection state in which the motor and the turntable are connected, and a disconnected state in which the motor and the turntable are disconnected.
After the opening operation of the door on the floor registered in the call and before the closing operation of the door on the destination floor, the power transmission unit is in the connected state, and the motor is operated, After the end of the turntable located on the opposite side of the doorway on the floor where the call is registered is directed to the doorway side on the destination floor, the power transmission unit further includes a control unit for setting the power transmission unit to the disconnected state. The elevator for a wheelchair user according to claim 1, wherein:
It further includes a detection unit that detects the use of the elevator by the wheelchair user,
The motor performs the opening operation and the closing operation of the door at two different speeds,
The control unit includes:
When the detection unit does not detect the use of the elevator of the wheelchair user, the power transmission unit is in the disconnected state, the motor at the faster speed of the two different speeds, the opening operation of the door and the motor. Perform the closing operation,
When the detection unit detects the use of the elevator by the wheelchair user, the power transmission unit is set to the connection state, and the motor is connected to the motor at a lower speed among the two different speeds during the connection state. The elevator for a wheelchair user according to claim 2, wherein the opening operation or the closing operation is performed.
The control unit causes the power transmission unit to be in the disconnected state when the power transmission unit is in the connected state and the closing operation is interrupted while the motor is performing the closing operation of the door. The elevator for a wheelchair user according to claim 2, characterized in that:
The elevator for a wheelchair user according to claim 2, wherein the control unit disconnects the connection between the motor and the door in the connection state.